@pghretroguy
>Linuxhave a look herefor example :
folder /home/your_username/1 contains rom-files
folder /home/your_username/2 contains image-files
this shows all rom-files from folder 1, that doesn't have an existing (or not correct named) image-file in folder 2
comm -23 <(find /home/your_username/1 -type f -exec bash -c 'basename "${0%.*}"' {} \; | sort) <(find /home/your_username/2 -type f -exec bash -c 'basename "${0%.*}"' {} \; | sort)
with this information, you can search for the explicit image-file
>Windows@echo off &setlocal
set romfolder=C:\1
set imagefolder=C:\2
for %%a in ("%romfolder%\*.*") do if not exist "%imagefolder%\%%~na.*" echo %%~na%%~xa no image found
pause